The chance encounters of everyday life shape us in more ways than we can imagine. From them spring unexpected opportunities, exciting new directions, burgeoning friendships and, quite often, great music. Such as is the case with “Acts,” the debut album from RNDM, featuring Pearl Jam bassist Jeff Ament, songwriter Joseph Arthur and drummer Richard Stuverud. As the project’s moniker alludes to, Ament and Arthur met randomly on a June evening in 1999, when Arthur opened a show at the late, great New York club Wetlands on a bill headlined by Ament and Stuverud’s side project Three Fish. At the time, Arthur was drawing acclaim for his solo performances, which employed a looping pedal that made the artist sound as if he was being backed by a full band.